HMG 5400 PorterHMG 5400 Porter Sometimes, if you carry bulky winter gear, the 4400 isnt big enough. The 5400 is designed for winter trips with added capacity for bulkier cold weather clothing or dry suits, additional days worth of food, or supplementary equipment needed when throwing packrafting, climbing, or bikepacking into the mix. Just like the standard Porter, the 5400 uses mayhem tested 150 Denier Poly Dyneema Composite Fabric Hybrid for the main body of the